Help me in solving BEGGASOL problem

help
,
1

My issue

My code

#include <bits/stdc++.h>
using namespace std;

int main() 
{
    int t;
    cin>>t;
    while(t--)
    {
        int n;
        cin>>n;
        int arr[n];
        for(int i=0;i<n;i++)
        {
            cin>>arr[i];
            
        }
        if(arr[0]==0)
        {
            cout<<"0"<<endl;
        }
        else
        {
        int count=0;
        int sum=0;
            for(int i=0;i<n;i++)
            {
                sum= sum+ arr[i];
                if(sum!=0)
                {
                count++;
                sum--;
                }
            }
            cout<<(count+sum)<<endl;
        }
        
    }
	return 0;
}

Problem Link: CodeChef: Practical coding for everyone